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What does it mean when using the z statistic to find population mean with a known...

What does it mean when using the z statistic to find population mean with a known population standard deviation using ?

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Expert Solution

  1. With a known population standards deviation the mean has a normal Z distribution.
  2. The formula E gives the maximum error of the estimate.
  3. Z shows the Z score taken form the normal table.
  4. The Z score increases the level of confidence in each interval to eliminate errors.

     

keosha answered 2 years ago
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